Because of his unique appearance and behavior, CHUN Sung-geun, who’s called E.T. among his students, is the gym teacher of a private high school, an upscale district where competition is heated among students to enter top colleges. He’s a truly wacky teacher who has lived his life that way for ten years without any worries. But one day he’s struck with a crisis. At the school’s board meeting, a parent requests that the school get rid of the useless gym class and expand the hours for English classes. Faced with having to quit the school, he remembers by chance that he obtained a license to teach English ten years ago. The president of the school tells him to pass a test in order for her to acknowledge it. But for Sung-geun, who had nothing to do with English for ten years, faces the impossible task to become an English teacher within two weeks. His only weapon is his amazingly incomparable physical strength and with the help of a few students who understand his warm heart, he starts a perilous and knee-slapping journey to become the school’s E.T.

(Source: http://www.koreanfilm.or.kr)